Jar-closure or the like.



Patented Sept. 14, 1915.

/NL/ENTUR J. C. N/EHUL MIN-55555 V QWM JOHN CHRISTOPHER NICHOL, PERTH, ONTARIO, CANADA.

JAR-CLOSURE OR THE LIKE.

Specification of Letters Patent.

Patented Sept. 14, 1915.

Application filed February 26, 1915. Serial No. 10,742.

To all whom it may concern:

Be it known that I, JOHN Ormrsrorrrnn NICHOL, a subject of the King of Great' Britain, and resident of the town of Perth, Province of Ontario, county of Lanark, Dominion of Canada, having made certain new and useful Improvements in Jar- Closures or the like, do declare that the following is a full, clear, and exact description of the same.

The invention relates to improvements in jar closures or the like as described in the present specification, and illustrated in the accompanying drawings that form part of the same.

The invention consists essentially of the novel arrangement and construction of parts whereby a spring clamping member extends circumferentially around the jar and diametrically across the cover.

The objects of the invention are to devise a sealing means of simple and durable construction for jars or the like whereby the cover will be resiliently held upon the jar and effectually make the same air-tight, and at the same time be readily placed in position or removed when desired.

Referring to the drawings :Figure 1 is a perspective View of the jar showing the jar partly broken away. Fig. 2 is a perspective view of the spring clamp.

Like numerals of reference indicate corresponding parts in each figure.

In the drawings, 1 is the jar having the peripheral flange 2 extending circumferentially there-around, and spiral similar to a screw thread.

3 is a cover fitting the open top of the jar, and preferably having an indentation or recess in the center thereof. The cover is held on the jar by the spring clamp 4 having the ring 5 extending around the jar underneath the flange 2, and having the upwardly extending side 6 turned at the top thereof diametrically across the jar cover to form a cross bar 7 thus completing the clamp, said bar 7 being crimped in the center thereof at 8 to extend into the recess in the cover.

The ring 5 of the clamp is normally bent slightly in spiral form so that it may be readily guided around the jar immediately under the flange 2, where said flange starts adjacent the jar top, and the ring can be turned to the right by turning the cross bar with the thum d fingers, rew ng the a. ring around the jar and at the'same time downwardly with the spiral flange until the cross bar is tightly sprung against the cover, and as the bearing of the said cross bar is in the center of the cover, the said cover will constantly have an even spring pressure thereon around the entire edge thereof.

An effectual sealing means is thus formed for the top of the jar and when it is desired to remove the same the clamp may be readily turned off or unscrewed as the cross bar may be slightly sprung downwardly to loosen and start the ring around the jar for unscrewing the same completely.

The jar closure as hereinbefore described is of the simplest construction and yet perznits of the use of any style flat cover.

I further provide a reinforcing block 9 formed adjacent to the upper end of the flange 2, adding greater strength thereto and adapted to act as a stop against which the upwardly extending side 6 abuts thereby limiting the motion of the ring 5. It will be appreciated that without this stop there will be a tendency of the ring 5 riding on the flange 2 if the said ring were screwed too tightly into engagement and this would impair the effectiveness of the closure.

To facilitate in giving the necessary direction to the ring 5 I also provide a boss 10 formed below the flange 2 and adapted to cooperate with the flange to house the ring therebetween.

What I claim is 1. A jar closure comprising in combination a jar having a peripheral flange extending circumferentially and spirally therearound, a cover fitting said jar top and having a center depression and a clamp having a ring portion extending around said jar be low said flange and extending upwardly and diametrically across said ar cover to form a cross bar crimped downwardly intermediate of the length thereof to form a teat bearing upon the center depression of said cover, and abutting means coacting with the upwardly extending portion of the clamp adapted to limit the movement of the clamp.

2. A jar closure comprising in combination a jar having a peripheral flange extending there-around with a reinforcing block formed at the upper end thereof, a cover and a spring clamp threaded about said jar below said peripheral flange, and coacting with the said reinforcing block securing said cover in position.

3. A jar closure comprising in combination a jar having a peripheral flange extending spirally there-around and a reinforcing block formed at the upper end of said flange,

and a guide boss paralleling said flange therebeneath, a cover and a spring clamp threaded about said jar between said peripheral flange and said guide boss and securing 10 said cover in position.

Signed at the city of Ottawa, Province of Ontario, Canada, this 31st day of December, 1914.

JOHN CHRISTOPHER NIGHOL.

In thepresence of A. LLOYD HUBER, M. K. BERIGAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

. Washington, I). 0. 

